[craigsmansion]

> half of them flat-out don't know how to handle their instruments properly

I'd venture to say that's in the eye of the beholder. A highly skilled, say, progressive rock guitarist could reasonably claim all of them don't know how to handle their instruments.

> lazy, adolescent and derivative.

I wouldn't discount any argument that would claim this is true for all metal. In a way, that's part of its appeal.

[eponeponepon]

    > In a way, that's part 
    > of its appeal. 

You're not wrong - and this is no small part of why it's a tough problem.

But I think those three are a bit of a "pick any two" situation.